Martin Lindqvist

The film is based on a series of immensely popular Swedish children's books, about the boy Bert, who is just hitting puberty and having the usual problems with it. But that's where the usual ends abruptly.

John-John is young and black, growing up with his mother and stepfather in a boring suburb south of Stockholm. On one of the last days of the summer vacation, they rescue 10-year old Patricia from drowning at a public bath in Vinterviken in Lake Mälaren. Her father shows his gratitude by taking them home to the wealthy neighborhood, Bromma, where he and his family lives. John-John meets his daughter Elisabeth, and instantly fall in love with her. But it's a long way to go before he wins her love and her father's consent.

Leila is the girl that everyone is in love with. Bert is in the same class as Amira, the little sister to Leila, and he sees his opportunity to approach Leila through friendship with Amira.

The first appearance on screen for Bert Ljung, a normal teenager who's diary Swedes have been able to follow in well over ten books now. As in the books, he fights spots, looks for girls, runs his moped, plays with his weird friends Ake and Erik, and a lot of other stuff teenagers are supposed to do.